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Biomedical subjects

W Calvert

Publications and source records attributed to W Calvert.

3 recordsLinked to original sources
PubMed1991

Epidemiologic identification of infants with low birth weight in urban areas of Latin America: II. A simplified risk score for early prenatal identification in Guatemala City.

A simple, empirically derived instrument is needed in developing countries to identify mothers at risk of delivering low birth weight (LBW) infants, in order to help reduce the incidence of LBW deliveries and provide mothers at high risk with appropriate health care. The study reported here was devoted to developing an instrument of this kind using data obtained before the twenty-sixth week of gestation from an urban study population of 17,135 Guatemalan women. It appears that this instrument could be appropriately applied to urban populations in other developing countries.

Adolescent↗
PubMed1989

The measuring of blood pressure during pregnancy.

This is an evaluation of the methodology of blood pressure measurement in a high-risk obstetric clinic. Blood pressure values were obtained from 149 patients by the clinic staff and the research project coordinator. The project coordinator using the random-zero sphygmomanometer measured lower systolic and higher diastolic values. The diastolic and systolic values increased after 30 weeks of pregnancy up to term. Agreement among observers is low for diastolic blood pressure. The clinic staff measured about 50% of the values with a zero terminal digit as compared with only 14% by the project coordinator. The fourth Korotkoff sound can be recorded in 83% of the patients. The mean diastolic blood pressures obtained with the fourth sound are significantly higher than when the fifth sound is used. Recommendations are offered for blood pressure measuring during pregnancy, and it is strongly suggested that the same methodologic rigor be used as in any other medical procedure.

Blood Pressure Determination↗